C# program to define various types of constants

Syntax:

    const data_type constant_name = value;
    const float PI = 3.14f;

Example:

    Input:
    const int a = 10;   //integer constant 
    
    Console.WriteLine("a: {0}", a);

    Output:
    a: 10

C# code to define various types of constants:

// C# program to define various types of constants 
using System;
using System.IO;
using System.Text;

namespace JustTechReview
{
    class Test
    {
        // Main Method 
        static void Main(string[] args)
        {
            const int a = 10;   //integer constant 
            const float b = 20.23f; //float constant
            const double c = 10.23;  //double constant
            const char d = 'Y';     //character constant 
            const string e = "Hello";   //string constant

            //printing values
            Console.WriteLine("a: {0}", a);
            Console.WriteLine("b: {0}", b);
            Console.WriteLine("c: {0}", c);
            Console.WriteLine("d: {0}", d);
            Console.WriteLine("e: {0}", e);


            //hit ENTER to exit the program
            Console.ReadLine();
        }
    }
}

Output:

a: 10
b: 20.23
c: 10.23
d: Y
e: Hello